Caution: This document contains mixed page sizes ... - Igor Chudov
Caution: This document contains mixed page sizes ... - Igor Chudov
Caution: This document contains mixed page sizes ... - Igor Chudov
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Supplement 900-1 002<br />
Date: 12-94<br />
lnsett with-<br />
Tile: YD Generators and Controls<br />
Service Manual<br />
Number: 900-0184 Date: 11-83<br />
~~ ~ ~ ~<br />
<strong>This</strong> supplement to the YD Service Manual adds information specific to the Onan PROTEC series of<br />
YD PTO AC generator/voltage regulator systems.<br />
NOTE: The YD PTO product referred to in the YD Service Manual is an earlier Onan product,<br />
no longer being manufactured.<br />
CONTENTS OF SUPPLEMENT<br />
TITLE PAGE<br />
GeneratorNoltage Regulator Troubleshooting ........................................ 1<br />
GeneratodRegulator Tests ........................................................ .5<br />
12/15 KW Generator Meter/Breaker Panel Schematic Diagram (61 5-0426) .............. 13<br />
16/20,20/24 KW Generator MeterBreaker Panel Schematic Diagram (61 5-0427) ........ 14<br />
24/30,30/35 KW Generator MeterBreaker Panel Schematic Diagram (61 5-0428) ....... .I5<br />
YD PTO AC Generator Wiring Diagram (61 2-6678) .................................. .I6<br />
GENERATOWVOLTAGE REGULATOR<br />
TROUBLESHOOTING<br />
<strong>This</strong> section <strong>contains</strong> troubleshooting informa-<br />
tion for the generator and its electronic voltage<br />
regulator. Determine the problem and then re-<br />
fer to the appropriate flow chart (A, 8, Cy D, or<br />
E) for troubleshooting procedures.<br />
A. NO AC OUTPUT VOLTAGE AT RATED<br />
RPM.<br />
B. UNSTABLE OUTPUT VOLTAGE, EN-<br />
GINE SPEED STABLE.<br />
C. OUTPUT VOLTAGE TOO HIGH OR LOW<br />
D. EXCITER FIELD BREAKER TRIPS<br />
E. UNBALANCED GENERATOR OUTPUT<br />
VOLTAGE<br />
1<br />
To troubleshoot a problem, start at upper left<br />
comer of the chart related to the problem, and<br />
answer all questions either YES or NO. Follow<br />
the chart until the problem is found, performing<br />
referenced Adjustment and Test procedures<br />
following the Flow Charts.<br />
Referenced components in the Flow Charts<br />
and Adjustment and Test procedures can be<br />
found on the schematic and wiring diagrams<br />
found in this supplement, and in the assembly<br />
drawings found in the lnstallation Manual.<br />
NOTE Generator disassembly/assembly pro-<br />
cedures and PROTEC series YD PTO generator<br />
configurations may be found in the YD Service<br />
Manual (900-0184) and in the PROTEC Opera-<br />
tor’s ManuaI (929-0100) and Installation Manual<br />
(-).